My problem is like this (below this text is example). I created one table with one column and I have used a set transaction read only option to try it, but I don't know why I got output like this. Why Oracle didn't say ORA-01456:may not perform insert/delete/update operation inside a READ ONLY transaction


SQL> set transaction read only;

Transaction set.

SQL> update tabela
  2 set x=5;

5 rows updated.

SQL> select *
  2 from tabela;

         X
----------
         5
         5
         5
         5
         5